Rewrote SpriterDataNGUI.cs. Spriter R3 compliant. Separated the reusable components into another class, SpriterDataUnity.
Updated README.md
Merge branch 'master' of https://github.com/CptDefault/spriterdapi-unity-ngui

Conflicts:
	Components.meta
	Components/SpriterNGUIColorHelper.cs.meta
	Editor.meta
	Editor/SpriterDataNGUI.cs.meta
	Editor/SpriterData_NGUI.cs
	Example.meta
	Example/Imported.meta
	Example/Imported/entity_000 Atlas.png.meta
	Example/Scene.meta
	Example/Scene/SpriterImport_NGUI.unity
	Example/Scene/SpriterImport_NGUI.unity.meta
	Example/SwitchAnimations_NGUI.cs.meta
	LICENSE.txt.meta
	README.md.meta